updated 11:00 pm EDT, Wed April 20, 2011

Foursquare's Crowley visits Apple

Foursquare co-founder Dennis Crowley drew some attention Wednesday with a check-in at Apple's Cupertino headquarters. The post itself gave no clues but saw him check in at the same time as Holger Luedorf, the company's key organizer for business development and partnerships, as well as its public relations manager Erin Gleason. The latter mentioned she was going to "the next meeting" less than an hour before ending up at Apple.

All of them were in the area for the Where 2.0 conference where Crowley was speaking, but apart from a visit by at least Crowley and Luedorf to the Charity:Water fundraiser at LucasArts and ILM, little else appeared to have been on the itinerary for the day.

The possibility exists that Crowley was just there to visit friends or for entertainment, but his accompaniment is unusual and saw him arrive as Apple is getting near near changing MobileMe. Most rumors surrounding a service upgrade haven't made any mention of Foursquare but have usually discussed it going free and getting more cloud sync services.

Apple has made strategic acquisitions for location technology. It bought PlaceBase in October 2009, getting a team familiar with map layers, and Poly9, a company that had developed a Google Earth-style web map. The Cupertino firm has also been hiring to revamp location services in iOS, though the new position would probably come too soon for any software updates this year. [via9to5]

Probably just a shopping trip

The store in Apple's HQ in Cupertino has some logo gear that you can't get anywhere else. He was probably picking up some Apple t-shirts or hoodies or something. All the cool kids are wearing them now.